Crab pond pesticide applying machine capable of applying pesticide and automatically feeding water

The utility model discloses an automatic water feeding crab pond pesticide applying machine which comprises a water feeding assembly, a water feeding outer frame, an inclined face arranged on the inner bottom face of the water feeding outer frame, a water inlet pipe penetrating through the side face of the water feeding outer frame, a water pump arranged on the top face of the inclined face and a water outlet formed in the inner side wall of the water feeding outer frame. The layer filtering assembly comprises a supporting rod fixed to the top face of the water feeding outer frame, a top plate fixed to the top face of the supporting rod, a first air cylinder installed on the top face of the top plate, concave supports clamped to the two opposite sides of the water feeding outer frame, filtering plates inserted into the concave supports and a slag discharging assembly. Through mutual cooperation of the water feeding structure, the layer filtering structure and the residue discharging structure, automatic water